From owner-freebsd-stable@FreeBSD.ORG Wed Oct 21 17:28:48 2009 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2BBB6106566B for ; Wed, 21 Oct 2009 17:28:48 +0000 (UTC) (envelope-from korvus@comcast.net) Received: from mx04.pub.collaborativefusion.com (mx04.pub.collaborativefusion.com [206.210.72.84]) by mx1.freebsd.org (Postfix) with ESMTP id ED3108FC15 for ; Wed, 21 Oct 2009 17:28:47 +0000 (UTC) Received: from [192.168.2.164] ([206.210.89.202]) by mx04.pub.collaborativefusion.com (StrongMail Enterprise 4.1.1.4(4.1.1.4-47689)); Wed, 21 Oct 2009 13:28:46 -0400 X-VirtualServerGroup: Default X-MailingID: 00000::00000::00000::00000::::121 X-SMHeaderMap: mid="X-MailingID" X-Destination-ID: freebsd-stable@FreeBSD.org X-SMFBL: ZnJlZWJzZC1zdGFibGVARnJlZUJTRC5vcmc= Message-ID: <4ADF44CE.3030605@comcast.net> Date: Wed, 21 Oct 2009 13:28:46 -0400 From: Steve Polyack User-Agent: Thunderbird 2.0.0.23 (X11/20090902) MIME-Version: 1.0 To: mav@freebsd.org References: <4ADE060C.5050605@comcast.net> In-Reply-To: <4ADE060C.5050605@comcast.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable , freebsd-hardware@freebsd.org Subject: Re: FreeBSD and SATA Port Multipliers X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Oct 2009 17:28:48 -0000 Alexander Motin wrote: > Have you tried new CAM-based ATA subsystem present in 8.x by siis(4) > driver? Work is still in progress there, but it should work with port > multipliers much better then previous implementation. Indeed, the siis(4) driver works MUCH better. However, it's still not always detecting every drive if I fill a port multiplier with 5/5 drives. Sometimes it boots up with 4, sometimes with 5. Snippet from the dmesg in my other reply: siisch4: Timeout on slot 25 siisch4: siis_timeout is 00000000 ss 02000000 rs 02000000 es 00000000 sts 80192000 serr 00000000 (aprobe0:siisch4:0:1:0): SIGNATURE: 0000 (aprobe0:siisch4:0:2:0): SIGNATURE: 0000 (aprobe0:siisch4:0:3:0): SIGNATURE: 0000 (aprobe0:siisch4:0:4:0): SIGNATURE: 0000 ada0 at siisch4 bus 0 target 1 lun 0 ada0: ATA/ATAPI-8 SATA 2.x device ada0: 300.000MB/s transfers ada0: 1430799MB (2930277168 512 byte sectors: 16H 63S/T 16383C) ada0: Native Command Queueing enabled siisch4 bus 0 target 0 lun 0 is missing here, due to some kind of timeout. The drives are fine and the missing device does not follow a specific physical drive. Lastly, using camcontrol to rescan port multipliers and attached drives only leads to failure. Rescanning everythign simply loses all but one drive attached to each port multiplier.